Patent · US Expired

Electromagnetically actuatable valve

US4471914A · kind A · utility

14Cited by

3References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Udo Hafner · Munich, DE
Rudolf Krauss · Stuttgart, DE
Hans Kubach · Ditzingen, DE
Rudolf Sauer · Memmingen, DE

Key dates

Filing date	Sep 14, 1982
Grant date	Sep 18, 1984
Priority date	—
Expiry date	Sep 14, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S239/90
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electromagnetically actuatable valve, in particular a fuel injection valve for fuel injection systems. The valve includes a valve housing of ferromagnetic material and a core on which a magnetic coil is placed. An intermediate disk of ferromagnetic material is disposed on the end face of the cup-like valve housing. The passage bore has a lesser diameter than the inner bore of the valve housing. A flat armature partially protrudes beyond the stop face of the intermediate disk remote from the valve housing and again has a smaller diameter than the inner bore of the valve housing. Because of the small diameter of the flat armature, the flat armature has a small mass, so that short switching times of the valve are attainable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.